v2.2.15 - make check - Conditional jump or move depends on uninitialised value

[AMM]

Hello,

I am currently using Dovecot 2.2.10 on Fedora 16 - 64 bit system

I had made v2.2.10 Fedora 16 rpm file using spec file from ATrpms.
http://dl.atrpms.net/all/dovecot.spec

It has been working well from 6 months or so.

Today I tried to make v2.2.15 rpm using same spec file.

But "make check" is giving following error:

fatal_printf_format_fix .............................................. : ok
0 / 190 tests failed
==8834== Conditional jump or move depends on uninitialised value(s)
==8834==    at 0x4F7FE99: __strspn_sse42 (in /lib64/libc-2.14.90.so)
==8834==    by 0x10FCF1: test_ds_recurse (test-data-stack.c:123)
==8834==    by 0x10FCC9: test_ds_recurse (test-data-stack.c:119)
==8834==    by 0x10FCC9: test_ds_recurse (test-data-stack.c:119)
==8834==    by 0x10FCC9: test_ds_recurse (test-data-stack.c:119)
==8834==    by 0x10FCC9: test_ds_recurse (test-data-stack.c:119)
==8834==    by 0x10FCC9: test_ds_recurse (test-data-stack.c:119)
==8834==    by 0x10FCC9: test_ds_recurse (test-data-stack.c:119)
==8834==    by 0x10FCC9: test_ds_recurse (test-data-stack.c:119)
==8834==    by 0x10FCC9: test_ds_recurse (test-data-stack.c:119)
==8834==    by 0x10FCC9: test_ds_recurse (test-data-stack.c:119)
==8834==    by 0x10FCC9: test_ds_recurse (test-data-stack.c:119)
==8834==

There are more similar errors after that and then rpmbuild aborts.

I already saw that someone reported same error recently:
http://dovecot.org/pipermail/dovecot/2014-October/098452.html

But I do not know what is the right solution / patch?

Can I disable "make check" safely?
Its a production server so would not take any risk.

Can anyone please tell what should I do?

Thanks in advance.

AMM